| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #ifndef SkImageInfo_DEFINED | 8 #ifndef SkImageInfo_DEFINED |
| 9 #define SkImageInfo_DEFINED | 9 #define SkImageInfo_DEFINED |
| 10 | 10 |
| (...skipping 117 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 128 * alphaType for this colorType, return it in canonical. | 128 * alphaType for this colorType, return it in canonical. |
| 129 */ | 129 */ |
| 130 bool SkColorTypeValidateAlphaType(SkColorType colorType, SkAlphaType alphaType, | 130 bool SkColorTypeValidateAlphaType(SkColorType colorType, SkAlphaType alphaType, |
| 131 SkAlphaType* canonical = NULL); | 131 SkAlphaType* canonical = NULL); |
| 132 | 132 |
| 133 /////////////////////////////////////////////////////////////////////////////// | 133 /////////////////////////////////////////////////////////////////////////////// |
| 134 | 134 |
| 135 /** | 135 /** |
| 136 * Describe an image's dimensions and pixel type. | 136 * Describe an image's dimensions and pixel type. |
| 137 */ | 137 */ |
| 138 struct SK_API SkImageInfo { | 138 struct SkImageInfo { |
| 139 public: | |
| 140 SkImageInfo() {} | |
| 141 | |
| 142 int fWidth; | 139 int fWidth; |
| 143 int fHeight; | 140 int fHeight; |
| 144 SkColorType fColorType; | 141 SkColorType fColorType; |
| 145 SkAlphaType fAlphaType; | 142 SkAlphaType fAlphaType; |
| 146 | 143 |
| 147 /* | |
| 148 * Return an info with the specified attributes, tagged as sRGB. Note that
if the requested | |
| 149 * color type does not make sense with sRGB (e.g. kAlpha_8) then the sRGB r
equest is ignored. | |
| 150 * | |
| 151 * You can call isSRGB() on the returned info to determine if the request w
as fulfilled. | |
| 152 */ | |
| 153 static SkImageInfo MakeSRGB(int width, int height, SkColorType ct, SkAlphaTy
pe at); | |
| 154 | |
| 155 /* | |
| 156 * Return an info with the specified attributes, tagged with a specific gam
ma. | |
| 157 * Note that if the requested gamma is unsupported for the requested color
type, then the gamma | |
| 158 * value will be set to 1.0 (the default). | |
| 159 * | |
| 160 * You can call gamma() to query the resulting gamma value. | |
| 161 */ | |
| 162 static SkImageInfo MakeWithGamma(int width, int height, SkColorType ct, SkAl
phaType at, | |
| 163 float gamma); | |
| 164 | |
| 165 static SkImageInfo Make(int width, int height, SkColorType ct, SkAlphaType a
t) { | 144 static SkImageInfo Make(int width, int height, SkColorType ct, SkAlphaType a
t) { |
| 166 return MakeWithGamma(width, height, ct, at, 1); | 145 SkImageInfo info = { |
| 146 width, height, ct, at |
| 147 }; |
| 148 return info; |
| 167 } | 149 } |
| 168 | 150 |
| 169 /** | 151 /** |
| 170 * Sets colortype to the native ARGB32 type. | 152 * Sets colortype to the native ARGB32 type. |
| 171 */ | 153 */ |
| 172 static SkImageInfo MakeN32(int width, int height, SkAlphaType at) { | 154 static SkImageInfo MakeN32(int width, int height, SkAlphaType at) { |
| 173 return SkImageInfo(width, height, kN32_SkColorType, at, kExponential_Pro
file, 1); | 155 SkImageInfo info = { |
| 156 width, height, kN32_SkColorType, at |
| 157 }; |
| 158 return info; |
| 174 } | 159 } |
| 175 | 160 |
| 176 /** | 161 /** |
| 177 * Sets colortype to the native ARGB32 type, and the alphatype to premul. | 162 * Sets colortype to the native ARGB32 type, and the alphatype to premul. |
| 178 */ | 163 */ |
| 179 static SkImageInfo MakeN32Premul(int width, int height) { | 164 static SkImageInfo MakeN32Premul(int width, int height) { |
| 180 return SkImageInfo(width, height, kN32_SkColorType, kPremul_SkAlphaType, | 165 SkImageInfo info = { |
| 181 kExponential_Profile, 1); | 166 width, height, kN32_SkColorType, kPremul_SkAlphaType |
| 167 }; |
| 168 return info; |
| 182 } | 169 } |
| 183 | 170 |
| 184 /** | 171 /** |
| 185 * Sets colortype to the native ARGB32 type, and the alphatype to premul. | 172 * Sets colortype to the native ARGB32 type, and the alphatype to premul. |
| 186 */ | 173 */ |
| 187 static SkImageInfo MakeN32Premul(const SkISize& size) { | 174 static SkImageInfo MakeN32Premul(const SkISize& size) { |
| 188 return MakeN32Premul(size.width(), size.height()); | 175 return MakeN32Premul(size.width(), size.height()); |
| 189 } | 176 } |
| 190 | 177 |
| 191 static SkImageInfo MakeA8(int width, int height) { | 178 static SkImageInfo MakeA8(int width, int height) { |
| 192 return SkImageInfo(width, height, kAlpha_8_SkColorType, kPremul_SkAlphaT
ype, | 179 SkImageInfo info = { |
| 193 kUnknown_Profile, 0); | 180 width, height, kAlpha_8_SkColorType, kPremul_SkAlphaType |
| 181 }; |
| 182 return info; |
| 194 } | 183 } |
| 195 | 184 |
| 196 static SkImageInfo MakeUnknown(int width, int height) { | 185 static SkImageInfo MakeUnknown(int width, int height) { |
| 197 return SkImageInfo(width, height, kUnknown_SkColorType, kIgnore_SkAlphaT
ype, | 186 SkImageInfo info = { |
| 198 kUnknown_Profile, 0); | 187 width, height, kUnknown_SkColorType, kIgnore_SkAlphaType |
| 188 }; |
| 189 return info; |
| 199 } | 190 } |
| 200 | 191 |
| 201 static SkImageInfo MakeUnknown() { | 192 static SkImageInfo MakeUnknown() { |
| 202 return SkImageInfo(0, 0, kUnknown_SkColorType, kIgnore_SkAlphaType, kUnk
nown_Profile, 0); | 193 SkImageInfo info = { |
| 194 0, 0, kUnknown_SkColorType, kIgnore_SkAlphaType |
| 195 }; |
| 196 return info; |
| 203 } | 197 } |
| 204 | 198 |
| 205 int width() const { return fWidth; } | 199 int width() const { return fWidth; } |
| 206 int height() const { return fHeight; } | 200 int height() const { return fHeight; } |
| 207 SkColorType colorType() const { return fColorType; } | 201 SkColorType colorType() const { return fColorType; } |
| 208 SkAlphaType alphaType() const { return fAlphaType; } | 202 SkAlphaType alphaType() const { return fAlphaType; } |
| 209 | 203 |
| 210 bool isEmpty() const { return fWidth <= 0 || fHeight <= 0; } | 204 bool isEmpty() const { return fWidth <= 0 || fHeight <= 0; } |
| 211 | 205 |
| 212 bool isOpaque() const { | 206 bool isOpaque() const { |
| (...skipping 22 matching lines...) Expand all Loading... |
| 235 return (size_t)this->minRowBytes64(); | 229 return (size_t)this->minRowBytes64(); |
| 236 } | 230 } |
| 237 | 231 |
| 238 bool operator==(const SkImageInfo& other) const { | 232 bool operator==(const SkImageInfo& other) const { |
| 239 return 0 == memcmp(this, &other, sizeof(other)); | 233 return 0 == memcmp(this, &other, sizeof(other)); |
| 240 } | 234 } |
| 241 bool operator!=(const SkImageInfo& other) const { | 235 bool operator!=(const SkImageInfo& other) const { |
| 242 return 0 != memcmp(this, &other, sizeof(other)); | 236 return 0 != memcmp(this, &other, sizeof(other)); |
| 243 } | 237 } |
| 244 | 238 |
| 245 // DEPRECATED : use the static Unflatten | |
| 246 void unflatten(SkReadBuffer&); | 239 void unflatten(SkReadBuffer&); |
| 247 void flatten(SkWriteBuffer&) const; | 240 void flatten(SkWriteBuffer&) const; |
| 248 | |
| 249 static SkImageInfo Unflatten(SkReadBuffer&); | |
| 250 | 241 |
| 251 int64_t getSafeSize64(size_t rowBytes) const { | 242 int64_t getSafeSize64(size_t rowBytes) const { |
| 252 if (0 == fHeight) { | 243 if (0 == fHeight) { |
| 253 return 0; | 244 return 0; |
| 254 } | 245 } |
| 255 return sk_64_mul(fHeight - 1, rowBytes) + fWidth * this->bytesPerPixel()
; | 246 return sk_64_mul(fHeight - 1, rowBytes) + fWidth * this->bytesPerPixel()
; |
| 256 } | 247 } |
| 257 | 248 |
| 258 size_t getSafeSize(size_t rowBytes) const { | 249 size_t getSafeSize(size_t rowBytes) const { |
| 259 return (size_t)this->getSafeSize64(rowBytes); | 250 return (size_t)this->getSafeSize64(rowBytes); |
| 260 } | 251 } |
| 261 | 252 |
| 262 bool validRowBytes(size_t rowBytes) const { | 253 bool validRowBytes(size_t rowBytes) const { |
| 263 uint64_t rb = sk_64_mul(fWidth, this->bytesPerPixel()); | 254 uint64_t rb = sk_64_mul(fWidth, this->bytesPerPixel()); |
| 264 return rowBytes >= rb; | 255 return rowBytes >= rb; |
| 265 } | 256 } |
| 266 | 257 |
| 267 SkDEBUGCODE(void validate() const;) | 258 SkDEBUGCODE(void validate() const;) |
| 268 | |
| 269 /** | |
| 270 * If the Info was tagged to be sRGB, return true, else return false. | |
| 271 */ | |
| 272 bool isSRGB() const { return kSRGB_Profile == fProfile; } | |
| 273 | |
| 274 /** | |
| 275 * If this was tagged with an explicit gamma value, return that value, else
return 0. | |
| 276 * If this was tagged as sRGB, return 0. | |
| 277 */ | |
| 278 float gamma() const { return fGamma; } | |
| 279 | |
| 280 private: | |
| 281 enum Profile { | |
| 282 kUnknown_Profile, | |
| 283 kSRGB_Profile, | |
| 284 kExponential_Profile, | |
| 285 }; | |
| 286 | |
| 287 uint32_t fProfile; | |
| 288 float fGamma; | |
| 289 | |
| 290 SkImageInfo(int width, int height, SkColorType ct, SkAlphaType at, Profile p
, float g) | |
| 291 : fWidth(width) | |
| 292 , fHeight(height) | |
| 293 , fColorType(ct) | |
| 294 , fAlphaType(at) | |
| 295 , fProfile(p) | |
| 296 , fGamma(g) | |
| 297 {} | |
| 298 }; | 259 }; |
| 299 | 260 |
| 300 #endif | 261 #endif |
| OLD | NEW |